Geologists simulate deep earthquakes in the laboratory

More than 20 years ago, geologist Harry Green, now a distinguished professor of the graduate division at the University of California, Riverside, and colleagues discovered a high-pressure failure mechanism that they proposed then was the long-sought mechanism of very deep earthquakes (earthquakes occurring at more than 400 km depth).

Nuclear material 'safe' as Los Alamos fire rages

Radioactive material at the Los Alamos National Laboratory is safe, despite a wildfire which is keeping the lab closed for a fourth day.